Roller-bearing.



No. 860,832. PATENTED JULY 23, 1907.

w. s. SHARPNEGK. ROLLER BEARING.

APYLIGATION FILED 60T.29, 1908.

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THE NORRIS PETERS cm. WAsHINamN. 0.1:.

UNITED STATES PATENT OFFICE.

WILLIAM S. SI-IARPNEOK, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TOFREDERICK O. VEIIMEYER, OF CHICAGO, ILLINOIS.

ROLLER-BEARING.

Specification of Letters Patent.

Patented July 23, 1907.

Application filed October 29, 1906, Serial No. 341,147.

To all whom it may concern:

Be it known that I, WILLIAM S. SHARPNECK, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inRoller-Bearings; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in roller bearings.

The object of the invention is to provide a roller bearing, the rollersof which are provided with a self lubricating anti-frictional material,thus increasing the life and usefulness of the bearing, for anindefinite period.

With the above and other objects in view, the invention consists ofcertain novel features of construction, combination and arrangements ofparts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side view of a rollerbearing constructed of my improved bearing rollers. Fig. 2 is an endview of the same, parts being broken away and in section. Fig. 3 is alongitudinal sectional view through one of the rollers. Fig. 4 is adetail perspective view of one of the soft rawhide lubricating washers.Fig. 5 is a similar view of one of the hard rawhide washers which areinterposed between the soft washers.

Referring more particularly to the drawings, 1 denotes the bearingrollers arranged in a suitable cage to form a journal bearing forrailway car axles or any other form of revolving shaft. The cage forsupporting the rollers is here shown as consisting of a pair of rings 2in which are secured the opposite ends of annular series of cage pins 3upon which the rollers l are revolubly mounted, this arrangement of thecage and rollers being well known and forms no part of the presentinvention which consists in the construction of the bearing rollers.

The rollers 1 are of hollow or tubular form preferably contracted midwaybetween the ends as shown at 4. In the hollow ends of the rollers arearranged a series of soft flexible rawhide washers 5 between which arearranged a series of hard inflexible rawhide washers 6. The soft washers5 are adapted to contain lubricating oil which is absorbed thereby insufficient quantities to lubricate the rollers 1 for an indefiniteperiod.

The washers 5 and 6 are provided with alined, centrally disposedapertures 7, the diameter of which is such as to closely fit the cagepins 3 upon which the rollers are mounted. After the washers have beenarranged in the rollers as hereinbefore described, steel clampingwashers 8 are placed in the ends-of the rollers, said washers beingfrusto-conical in shape, tapering outwardly toward the ends of therollers as shown. The washers 5 and 6 and the steel washers S aretightly compressed and held in the rollers I by upsetting or swaging theends of the rollers on to the 'frusto-conical surfaces of the steelclamping washers, as shown. The aperture in the steel washers 8 is ofgreater diameter than the apertures in the rawhide washers, therebypreventing said steel washers from coming into contact with the cagepins. Between the ends of the rollers and the cage rings 2 are arrangedspacing washers 9.

By providing soft, lubricant, containing washers and alternating thesame with hard washers, a self lubricating anti-frictional bearing isprovided which will wear and remain self lubricating for an indefinitelength of time. The soft washers contain a sufficient lubricant toproperly lubricate the shaft for an indefinite period while thealternating hard washers give rigidity and prevent undue wear and theyalso hold the rollers in perfect line with the axle.

The hearing or nest of rollers is adapted to be inclosed and supportedin any suitable form of easing not shown and is especially adapted foruse on railway car axles.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the ininor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention, as defined by theappended claims.

1. A roller bearing roller having arranged therein a series of softbearing washers and a series of hard bearing washers arranged betweensaid soft washers and alternab ing therewith substantially as described.

2. A roller bearing roller having arranged therein a series of softlubricant containing washers and a series of hard washers arrangedbetween said soft washers and alternating therewith, substantially asdescribed.

3. A roller bearing roller having arranged therein a series of softlubricant containing rawhide washers, a series of hard rawhide Washers,arranged between said soft washers and alternating therewith, and meansto tightly compress and hold said washers in said rollers, substantiallyas described.

4. A hollow roller bearing roller having arranged therein a series ofsoft, lubricant containing washers, a series of hard washers arrangedbetween and alternating with said solft washers, said soft and hardwashers having formed therein alined, centrally disposed apertures toreceive the 'ashers arranged in the ends eli said roller. said steel H)washers heine; secured in place by upsetting er swag-in: lhe ends 01said roller, substantially as deserihed.

l11 [estimeny whereelf I have hereunto set my hand in presence of twosuhserihine' wiine WIT/ill HllAlliXl-IVK.

Witnesses .lus.1\. Yunnan.

